Internal-combustion engine



T. MORTON. INTERNAL COMBUSTION ENGINE.

APPLICATION FILED FEB. 20, I920.

Patented July 19, 1921.

2 SHEEN-SHEET I- lulliIII-lal.

5g o INVENTOR;

T. MORTON.

- INTERNAL COMBUSTION ENGINE.

APPLICATION FILED FEB. 20', 1920.

Patented July 19, 1921.

2 SHEETS-SHEET 2- channel or by a pump.

THOMAS MORTON, or nu'rnnnennn, SCOTLAND5" INTERNAL-COMBUSTION ENGINE.

Specification of Letters Patent. Patented July 19,

Application filed February 20, 1920. Serial No. 360,023.

To all, whom,- it 'nm z concern:

lie it known that I, THOMAS MORTON, Stonela-w Tower, Rutherglen. Lanarkshire, Scotland, a subject of the King of Great Britain, have invented certain new and useful Improvements in Internal-Combustion Engines, of which the following is a specification.

This invention relates to internal combustion engines or motors and its object is to provide an improved lubricating. arrangement therefor. The invention relates particularly to such'engines or motors as have the crank shaft, connecting rods, and other parts moving inside an inclosed crank charnber and in which the lubrication of the moving parts depends to agreat extent on the splashing of oil inside the crank chamber.

In engines of the kind referred to it has been proposed to divide or partition the crank chamber into a series of compartments 1 and to lead the splashed oilfrom one compartment to the next by inclined channels, finally returning the oil from the last compartment back to the first by an inclined Under this invention the oil, which is splashed up at one end of the crank chamber, is caused to flow directly to the other end thereof and, during its passage, it is cooled by a contra-flow of water.

In carrying out the invention, I provide an oil duct and an adjacent water duct or jacket extending from one end of the crank cham-- her to the other, the oil duct, at each end thereof, communicating with the interior of the crank chamber; The arrangement is such that the oil, splashed up at one end of the chamber, enters the oil duct and flows down along the same to the other end where it again enters the chamber at a lower level, the oil, in its passage along the oil duct, being cooled by water flowing in a contrary direction through the adjacent water duct or jacket. means of a pump and it may also be utilized for cooling the engine cylinders.

If so desired instead of the cooling water flowing in an opposite direction to the oil it may be arranged to flow in the same direcgion but generally I prefer to use a contra- The arrangement may be such as to provide for oil circulation and for cooling at both sides of the crank chamber.

The water may be circulated by Preferably the crank chamber is divided or partitioned, 1n the known manner, by

means of cross ribs, into a series of oil collecting spaces or compartments and the oil, while being. circulated and cooled in accordance with my invention, is made tooverflow the ribs which determine the level of the oil in the different compartments.

V In order that the invention maybe clearly understood I have hereunto appended explanatory drawings showing a suitable construction by way of example.

Figure 1 is a side elevation ofthe bottom part of the crank case ofan internal combustion engine of the marine type. v Fig. 9 is a View looking at end H, F ig. 1.

- Fig. 3 is a view looking at end G, Fig. 1.

. Fig. a is a cross section on the line (1-D. Fig. 5 is a cross section on the line A-B. Fig. 6 is a cross section on the line E.F. Fig. 7 is a plan of part of the crank chamber. "Referring to the drawings V Thecrank chamber a, of whichthe bottoin part only is shown, is made, at oneend thereof, with an outlet port 5 which communicates, by passages 0, 0 extending the length of the;chamber, with an inlet portjd at the-other end of the crank chamber and at the bottom thereof. At the side of the crank chamber is a jacket o which maybe pro vided with a removable cover f and cold water is admitted to-this jacket bv' inlet ,9

andip'asses outwardby. the outlet: 71...: In, the marine type motor the cold water is drawn in from the sea, by a pump as usual. and then, after passing through the jacket e, is delivered to the usual cooling jackets of the engine cylinders.

The bottom of the crank chamber is preferably provided with cross ribs i which subdivide the bottom into a series of shallow oil collecting spaces.

is is a filling hole for lubricant.

The arrangement is such that the oil splashed up at the end Gr of the chamber a; enters the outlet port Z2 and flows down the passage 0 and along the duct 0 to the other end of the chamber which it again enters at the inletd. The oil entering at d flows into the collecting spaces and overflows the ribsancl is then again splashed upward to the outlet Z) and, in this manner, a constant circulation is maintained.

The water passing through the jacket effectively cools the oil as it passes alongthe' duct'c and also aids in cooling the oil in the bottom of the crank chamber. I

It is obvious that instead oflsplashing u the oil to the outlet 6 it maybe raise p thereto by other means than the crank ac- With the improved arrangement as herein described While obtaining an efficient circulation of the lubricating oil and insuring its proper distribution to theseveral moving parts working Within the crank'chamberfI am able to maintain the lubricant in' cool condition which is also a great advantage. Furthermore, as Wlll now be" under stood, I secure these. advantages wlthout adding materially to the Weightof the en; gine and without making the crank cham ber of a complicated or intricate construction.

what I claim and desire to secure'by' Letters .Patent is 1- 7 1. A combined crank chamber, and lubrieating oil receptacle for internal combustion engines having, in combinat1on,' an. oil duct in the Wall of the chamber and through Which the oil. is caused .to flow, said duct communicating for this purpose With the interior of the chamber at each end, and means whereby-the oil, While passing along the duct, can be cooled by a floW ofliquid.

2. Acombine'd crank chamber and lubrieating oil-receptacle 'for'internal. combus tion engines having integral therewith an oil *duct extending from oneendof "the" chamber to the other end andthroughwhich' the *oil is caused to flow, said duct com? municating'for this purpose with the interior ofthe chamber at each end, and. an ad jac'ent duct through which cooling liquid can be caused tofloiv to cool the oil; in its passage through the oil duct.

3. combined crank chamber and lubrit Havingnow fully described my invention eating oil receptacle for internal combustlon engines havmg, in combination, an oil I duct extending inthe side Wall of the chamher from one end thereof to the other end, said duct being formed for this, purpose W1th ahigh level entrance at its one end J and allow level outlet atits other end both communicating with the interior of the chamber and a jacket located adjacent to the oil duct and through which cooling liq ui d can be caused to flow to cool the oil 1 itspassage along the oil duct.

4;. A combined crankchamber and lubrieating oil receptacle for internal combustionengines having, in combination, an oil duct 1n the slde Wall of the chamber extending from one end to the other end thereof and through which the oil in the chamber can be made to flow, an adjacent jacket open at the side through which cooling liquid can be caused to flow. in a contrary'direction-to' thefloW of oil, and removable means for closingsaid j acketJ 5. A combined crank'chamber and lubri cating oil receptacle for internal combus tion engines having, in combination, an oil duct eXtendingfrom one endof the crank chamber to the other end and through which the'oil forced up at .one' end of thechamber is caused to flow, said duct communicating for this purpose with the interior of In'testimony 'WhereofI aiiix my signature a in presenceoftwo Witnesses. V

ITHQS. MORTON;

Witnesses: p LATE XVALKER, MARY -GREEN.

rior of the chamber into a seri'es of oil col- 

